Question

Centrifugal Compressor Assignment 150 MMSCFD of sweet solution gas is to be compressed from 1000 psig to 2300 psig for export from a deepwater platform to an onshore gas processing plant. Given Gas SG Suction temperature 110 F Polytropic efficiency 82% Max gas temp to export p/l 150 F riser Determine the following 1. Overall compression ratio 2. # of stages required 3. Mass flow 4. Inlet acfm 5. Discharge temperature 6. Polytropic head 7. # of impellers required 8. Compressor power

Answer 1

Jalution - Criven. dala'- P,= lo00 Psig T,= llo'F Pa = 2300 Psig n- 0.89 Tg = 150°F Capacity-- 150 MMS .2300 )o00 9.3, P. #) Erge Skoge Comgaessn uimed lies belween -3, 2 R- value M= PAV loso00. 0. 7 x 1o00 x 150 lo 5o00kg/ Sec %3D iy Imet acfn |05000 x 0.82 = 86100 . 1.k-) Pe v) Ta P2 P, 1.4 230)0.&86 lo00 199°F

Capacizy paaufuopre esticicng Vi) ) Dasydopic. head = 150 o.82 182.9 = 183 CFM . N2 i mpellers Can be sreguitred vi) Manimun) viii) Gemporesn Ppolden por Single Sloge y BHP n-1 0.0528 P; CFM (R 0.286 = 0.00528 x. x00 -189 (2.3 o.k 2 0.01 848 X0)8000 x 0. 269 go4 BH P.